CN219244639U

CN219244639U - Photoelectric sensor capable of judging by using distance and color simultaneously

Info

Publication number: CN219244639U
Application number: CN202320213062.5U
Authority: CN
Inventors: 陈伟; 蒙桂林; 林飘平
Original assignee: Zhongshan Kewei Photoelectric Technology Co ltd
Current assignee: Zhongshan Kewei Photoelectric Technology Co ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-06-23
Anticipated expiration: 2033-02-13

Abstract

The utility model discloses a photoelectric sensor for judging by utilizing distance and color simultaneously, which comprises a shell, wherein an emission light path lens for emitting light rays to pass through and outwards emit, a receiving light path lens for emitting reflected light rays to pass through and enter and a PCB board are arranged in the shell, a processing circuit capable of setting object sensing distance and object reflected light sensing light intensity is arranged on the PCB board, the processing circuit is connected with a transmitting tube circuit for outwards emitting light rays, a CMOS circuit for receiving reflected light to detect a position distance signal of an emitting surface, a photodiode circuit for detecting a reflected light intensity signal, a screw rod for controlling the receiving light path lens to move up and down to change the reflected light sensing light intensity received by the photodiode circuit is arranged on the shell, a key for setting object sensing distance and object reflected light sensing light intensity is connected with the processing circuit, and a signal output module is arranged on the PCB board to realize the function of judging by utilizing distance and color simultaneously.

Description

Photoelectric sensor capable of judging by using distance and color simultaneously

[ technical field ]

The utility model relates to a photoelectric sensor for judging by using distance and color simultaneously.

[ background Art ]

The existing photoelectric sensor generally has the basic functions of distance detection, light intensity detection and color judgment. From these several functions, more complex applications cannot be realized due to the mutual constraints of the respective sensing principles and effects.

For example, the existing color sensor LX101 performs color detection according to the RGB principle, the distance that can be achieved is not more than 30mm, the range of fluctuation of the distance that can be stably sensed is very small, and the sensor cannot be adjusted, so that the sensor cannot achieve color sensing at a relatively long distance, even if the distance of the incoming material of the detected object slightly fluctuates, for example, exceeds 3mm, the sensor may be unstable.

[ summary of the utility model ]

The utility model overcomes the defects of the prior art and provides the photoelectric sensor for judging by utilizing the distance and the color at the same time.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a photoelectric sensor for judging by using distance and color simultaneously is characterized in that: the device comprises a shell, wherein an emission light path lens for emitting light rays to pass through and outwards emit out, a receiving light path lens for reflecting light rays to pass through and enter in and a PCB board are arranged in the shell, a processing circuit capable of setting object sensing distance and object reflected light sensing light intensity is arranged on the PCB board, the processing circuit is connected with a transmitting tube circuit for outwards emitting light rays, a CMOS circuit for receiving reflected light to detect position distance signals of an emitting surface and a photodiode circuit for detecting reflected light intensity signals, a screw for controlling the receiving light path lens to move up and down to change reflected light sensing light intensity received by the photodiode circuit is arranged on the shell, a key for setting object sensing distance and object reflected light sensing light intensity is connected with the processing circuit, and a signal output module is arranged on the PCB board.

The photoelectric sensor for judging by using the distance and the color simultaneously as described above is characterized in that: the transmitting optical path lens is arranged at the lower position of the inner side of the shell, and the receiving optical path lens is arranged at the upper position of the inner side of the shell.

The photoelectric sensor for judging by using the distance and the color simultaneously as described above is characterized in that: the light-transmitting plate is arranged on the light-emitting side surface of the shell.

The photoelectric sensor for judging by using the distance and the color simultaneously as described above is characterized in that: the shell is provided with a mounting seat, and the transmitting light path lens and the receiving light path lens are arranged on the mounting seat.

The photoelectric sensor for judging by using the distance and the color simultaneously as described above is characterized in that: the processing circuit comprises a control chip U401, pins 1 and 3V3 of the control chip U401 are connected with a power supply, pins 4 of the control chip U401 are respectively connected with one end of a capacitor C401 and one end of a resistor R401, the other end of the capacitor C401 is grounded, the other end of the resistor R401 is connected with 3V3 of the power supply, pins 5 of the control chip U401 are grounded, pins 6 and 3V3 of the control chip U401 are connected with a power supply, pins 8 of the control chip U401 are connected with a photodiode circuit, pins 9-10 of the control chip U401 are respectively connected with a CMOS circuit, pins 13 of the control chip U401 are connected with a transmitting tube circuit, pins 18 of the control chip U401 are grounded, a capacitor C403 and a capacitor C405 are respectively connected between pins 18 of the control chip U401 and pins 19 of the control chip U401, pins 26 of the control chip U401 are grounded with 3V3 of the power supply, pins 26 of the control chip U401 are connected with a capacitor C406 between pins 27 of the control chip U401, pins 27 of the control chip U401 and 3V3 of the power supply are connected with one end of a button, the other end of the button is grounded, pins 35 of the button U401 are grounded, pins of the button U401 are connected with one end of the button, and the button C is grounded, pins are grounded through pins 35 of the resistor U401 and the control chip U401C 401 are grounded by pins 37, and the capacitor C401C are grounded by pins 37 are grounded, and the capacitor C401C are connected with the capacitor C37, and the control chip C is grounded by the pins of the control chip C401.

The photoelectric sensor for judging by using the distance and the color simultaneously as described above is characterized in that: the emitting tube circuit comprises a triode Q201, an emitting electrode of the triode Q201 is grounded through a resistor R201, a base electrode of the triode Q201 is connected with the processing circuit, a collector electrode of the triode Q201 is respectively connected with a negative electrode end of the emitting tube and a positive electrode end of a transient diode TVS, the negative electrode end of the transient diode TVS is grounded, the positive electrode end of the emitting tube is respectively connected with a capacitor C201 and a 9V power supply, and the other end of the capacitor C201 is grounded.

The photoelectric sensor for judging by using the distance and the color simultaneously as described above is characterized in that: the photodiode circuit comprises an operational amplifier U301, a pin 1 of the operational amplifier U301 is respectively connected with one end of a resistor R302 and one end of a capacitor C301, the other end of the capacitor C301 is respectively connected with the positive end of the photodiode and one end of a resistor R300, the other end of the resistor R300 is grounded, the negative end of the photodiode is connected with a 5V power supply, the other end of the resistor R302 is grounded, a pin 3 of the operational amplifier U301 is respectively connected with one end of a resistor R304 and one end of a resistor R303, the other end of the resistor R303 is grounded, the other end of the resistor R304 is respectively connected with one end of a resistor R310 and a pin 4 of the operational amplifier U301, the other end of the resistor R310 is respectively connected with one end of a capacitor C305 and a processing circuit, the other end of the capacitor C305 is grounded, a pin 2 of the operational amplifier U301 is grounded, and a pin 5 of the operational amplifier U301 is connected with a 3V3 power supply.

The photoelectric sensor for judging by using the distance and the color simultaneously as described above is characterized in that: the CMOS circuit comprises a CMOS chip, a CMOS chip pin 1 is connected with a 5V power supply, CMOS chip pins 2-3 are respectively connected with the processing circuit, a CMOS chip pin 5 and a CMOS chip pin 8 are respectively grounded, a CMOS chip pin 6 is respectively connected with one end of a capacitor C306 and the 5V power supply, and the other end of the capacitor C306 is grounded.

The beneficial effects of the utility model are as follows:

the utility model can carry out sensing judgment and can more flexibly limit the distance of the judgment result, does not need to process the proportion calculation of multipath received signals at the same time, does not need to use a plurality of sensing wavelengths or transmitting wavelengths, can use the response signals of the light source with single wavelength, can obtain smaller light spots, further distance and faster corresponding speed under the same function, can simultaneously adjust the light intensity through the screw rod, can be applicable to a larger light intensity range on the same sensor, has wider application range, realizes remote sensing, can set the sensing distance range at a longer distance, carries out color or light intensity judgment within the setting range, and finally ensures that the sensor is more intelligent and practical in application, comprises detecting the color and the material within the limiting distance, and detecting the depth of field of the enlarged sensing range under certain working conditions.

[ description of the drawings ]

FIG. 1 is a schematic diagram of the present utility model;

FIG. 2 is one of the exploded views of the present utility model;

FIG. 3 is a second exploded view of the present utility model;

FIG. 4 is a schematic diagram of the operation of the present utility model;

FIG. 5 is a workflow of the present utility model;

fig. 6 is a circuit configuration diagram of the present utility model.

Detailed description of the preferred embodiments

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, the description of "preferred," "less preferred," and the like, herein is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "preferred", "less preferred" may include at least one such feature, either explicitly or implicitly.

As shown in figures 1-6, a photoelectric sensor for judging by utilizing distance and color simultaneously comprises a shell 1, wherein an emission light path lens 2 for emitting light to pass through and outwards emit is arranged in the shell 1, a receiving light path lens 3 for emitting reflected light to pass through and enter and a PCB 4 are arranged on the PCB 4, a processing circuit 5 for setting object sensing distance and object reflected light sensing light intensity is arranged on the PCB 4, the processing circuit 5 is connected with an emitting tube circuit 6 for outwards emitting light, a CMOS circuit 7 for receiving reflected light to detect a position distance signal of an emitting surface, a photodiode circuit 8 for detecting a reflected light intensity signal, a screw 9 for controlling the receiving light path lens 3 to move up and down to change the reflected light sensing light intensity received by the photodiode circuit 8 is arranged on the shell 1, a key 10 for setting object sensing distance and object reflected light sensing light intensity is connected with the processing circuit 5, and a signal output module is arranged on the PCB 4.

Before actual use, the screw 9 is rotated to control the receiving light path lens 3 to move so as to adjust the reflected light intensity, and the processing circuit 5 is used for setting the receiving and transmitting light induction distance signals of the CMOS circuit 7 and the reflected light induction light intensity signals of the photodiode circuit 8 by pressing the key 10, so that different judgment results in different distance ranges and at boundaries are set, the judgment induction of the object induction distance and the color under a specific background is realized, and more intelligent control judgment is achieved.

In actual use, the processing circuit 5 controls the emitting tube circuit 6 to emit light outwards, the reflected light passes through the emitting light path lens 2 and then is reflected by the reflecting object, the reflected light passes through the receiving light path lens 3 and then is respectively received by the CMOS circuit 7 and the photodiode circuit 8, the CMOS circuit 7 receives the reflected light and detects a real-time position distance signal of the reflecting object, the photodiode circuit 8 detects a real-time reflected light intensity signal, the detection signal is sent to the processing circuit 5, the reflecting object is sensed after being processed by the processing circuit 5, and a control signal is output by the triode signal output module.

As shown in fig. 1 to 3, the transmitting optical path lens 2 is disposed at a lower position inside the housing 1, and the receiving optical path lens 3 is disposed at an upper position inside the housing 1; a light-transmitting plate 11 is arranged on the emitting side of the shell 1; the shell 1 is provided with a mounting seat 12, and the transmitting light path lens 2 and the receiving light path lens 3 are arranged on the mounting seat 12, so that the transmitted light and the reflected light are transmitted more stably and are received accurately for detection.

As shown in FIG. 6, the processing circuit 5 includes a control chip U401, pins 1 and 3V3 of the control chip U401 are connected with power supply, pin 4 of the control chip U401 is connected with one end of a capacitor C401 and one end of a resistor R401, the other end of the capacitor C401 is grounded, the other end of the resistor R401 is connected with 3V3 of the power supply, pin 5 of the control chip U401 is grounded, pin 6 and 3V3 of the control chip U401 are connected with the photodiode circuit 8, pins 9-10 of the control chip U401 are connected with CMOS circuit 7, pin 13 of the control chip U401 is connected with the transmitting tube circuit 6, pin 18 of the control chip U401 is grounded, a capacitor C403 and a capacitor C405 are connected between pin 18 of the control chip U401 and pin 19 of the control chip U401, pin 26 of the control chip U401 is grounded, a capacitor C406 is connected between pin 26 of the control chip U401 and pin 27 of the control chip U401, pin 27 of the control chip U401 is connected with 3V3 of the power supply, pin 30 of the control chip U401 is connected with one end of a button 10, another pin 10 of the control chip U401 is grounded, and the other pin 37 of the control chip U401 is grounded through pin 37 of the resistor U401R 401 and the control chip U401 is grounded, and the capacitor C37 is grounded, and the capacitor C401C is grounded, and the capacitor C37 is grounded, and the capacitor C is grounded, respectively, and the capacitor C is connected with the capacitor C37 is grounded, and the control chip is connected with the capacitor C3, and is connected with the control chip C3, and is connected to the control chip and to ground is connected to ground and to ground. Before use, the setting of the receiving-transmitting light-sensing distance signal of the CMOS circuit 7 and the reflecting light-sensing light intensity signal of the photodiode circuit 8 in the processing chip U401 can be set by the key S501. When the LED light source is used, the pin 13 of the processing chip U401 sends a pulse control signal to the transmitting tube circuit 6 to control the transmitting tube circuit 6 to emit light outwards, the CMOS circuit 7 receives reflected light and sends an induction distance signal to the processing chip U401 through the pins 9-10, the photodiode circuit 8 receives the reflected light and sends an induction light intensity signal to the processing chip U401 through the pin 8, and the processing chip U401 carries out operation and judges and then outputs an operation result.

As shown in fig. 6, the emitter tube circuit 6 includes a triode Q201, the emitter of the triode Q201 is grounded through a resistor R201, the base of the triode Q201 is connected with the processing circuit 5, the collector of the triode Q201 is respectively connected with the negative terminal of the emitter tube and the positive terminal of a transient diode TVS, the negative terminal of the transient diode TVS is grounded, the positive terminal of the emitter tube is respectively connected with a capacitor C201 and a 9V power supply, and the other terminal of the capacitor C201 is grounded. When the base electrode of the triode Q201 receives the pulse signal output by the processing circuit 5, the triode Q201 is conducted, so that the emitting tube is electrified to emit light outwards.

As shown in fig. 6, the photodiode circuit 8 includes an operational amplifier U301, a pin 1 of the operational amplifier U301 is connected to one end of a resistor R302 and one end of a capacitor C301, the other end of the capacitor C301 is connected to the positive end of the photodiode and one end of a resistor R300, the other end of the resistor R300 is grounded, the negative end of the photodiode is connected to a 5V power supply, the other end of the resistor R302 is grounded, a pin 3 of the operational amplifier U301 is connected to one end of a resistor R304 and one end of a resistor R303, the other end of the resistor R303 is grounded, the other end of the resistor R304 is connected to one end of a resistor R310 and one end of the operational amplifier U301 pin 4, the other end of the resistor R310 is connected to one end of a capacitor C305 and one end of a processing circuit 5, the other end of the capacitor C305 is grounded, the pin 2 of the operational amplifier U301 is grounded, and the pin 5 of the operational amplifier U301 is connected to a 3V3 power supply. After receiving the emitted light, the photodiode feeds back a detection signal to the operational amplifier U301, and outputs a reflected light intensity signal to the processing circuit 5 after operation.

As shown in fig. 6, the CMOS circuit 7 includes a CMOS chip, the CMOS chip pins 1 are connected with a 5V power supply, the CMOS chip pins 2-3 are respectively connected with the processing circuit 5, the

CMOS chip pins

5 and 8 are respectively grounded, the CMOS chip pin 6 is respectively connected with one end of the capacitor C306 and the 5V power supply, and the other end of the capacitor C306 is grounded. The CMOS circuit 7 receives the reflected light and detects the sensing distance, and then transmits the detected sensing distance signal to the processing circuit 5.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims

1. A photoelectric sensor for judging by using distance and color simultaneously is characterized in that: the device comprises a shell (1), wherein an emission light path lens (2) for emitting light to pass through and emit outwards, a receiving light path lens (3) for emitting reflected light to pass through and enter and a PCB (4) are arranged in the shell (1), a processing circuit (5) capable of setting an object sensing distance and object reflected light sensing light intensity is arranged on the PCB (4), the processing circuit (5) is connected with an emission tube circuit (6) for emitting the light outwards, a CMOS (complementary metal oxide semiconductor) circuit (7) for receiving reflected light detection emitting surface position distance signals and a photodiode circuit (8) for detecting reflected light intensity signals, a screw (9) for controlling the receiving light path lens (3) to move up and down and change the reflected light sensing light intensity received by the photodiode circuit (8) is arranged on the shell (1), a key (10) for setting the object sensing distance and the object reflected light sensing light intensity is connected with the processing circuit (5), and a signal output module is arranged on the PCB (4).

2. A photosensor for making a determination using both distance and color as defined in claim 1, wherein: the transmitting optical path lens (2) is arranged at the lower position of the inner side of the shell (1), and the receiving optical path lens (3) is arranged at the upper position of the inner side of the shell (1).

3. A photosensor for making a determination using both distance and color as defined in claim 1, wherein: a light-transmitting plate (11) is arranged on the light-emitting side of the housing (1).

4. A photosensor for making a determination using both distance and color as defined in claim 1, wherein: the shell (1) is provided with a mounting seat (12), and the transmitting light path lens (2) and the receiving light path lens (3) are arranged on the mounting seat (12).

5. A photosensor for making a determination using both distance and color as defined in claim 1, wherein: the processing circuit (5) comprises a control chip U401, a pin 1 of the control chip U401 is connected with a 3V3 power supply, a pin 4 of the control chip U401 is respectively connected with one end of a capacitor C401 and one end of a resistor R401, the other end of the capacitor C401 is grounded, the other end of the resistor R401 is connected with the 3V3 power supply, a pin 5 of the control chip U401 is grounded, a pin 6 of the control chip U401 is connected with the 3V3 power supply, a pin 8 of the control chip U401 is connected with a photodiode circuit (8), pins 9-10 of the control chip U401 are respectively connected with a CMOS circuit (7), a pin 13 of the control chip U401 is connected with a transmitting tube circuit (6), a pin 18 of the control chip U401 is grounded, a capacitor C403 and a capacitor C405 are respectively connected between the control chip U401 pin 18 and the control chip U401 pin 19, the control chip U401 pin 19 is connected with a 3V3 power supply, the control chip U401 pin 26 is grounded, a capacitor C406 is connected between the control chip U401 pin 26 and the control chip U401 pin 27, the control chip U401 pin 27 is connected with the 3V3 power supply, the control chip U401 pin 30 is connected with one end of a key (10), the other end of the key (10) is grounded, the control chip U401 pin 35 is grounded through a resistor R402, the control chip U401 pin 36 is grounded, the control chip U401 pin 37 is grounded, and a capacitor C402 and a capacitor C404 are respectively grounded between the control chip U401 pin 37 and the control chip U401 pin 1.

6. A photosensor for making a determination using both distance and color as defined in claim 1, wherein: the emitting tube circuit (6) comprises a triode Q201, an emitting electrode of the triode Q201 is grounded through a resistor R201, a base electrode of the triode Q201 is connected with the processing circuit (5), a collector electrode of the triode Q201 is respectively connected with a negative electrode end of the emitting tube and a positive electrode end of a transient diode TVS, the negative electrode end of the transient diode TVS is grounded, the positive electrode end of the emitting tube is respectively connected with a capacitor C201 and a 9V power supply, and the other end of the capacitor C201 is grounded.

7. A photosensor for making a determination using both distance and color as defined in claim 1, wherein: the photodiode circuit (8) comprises an operational amplifier U301, a pin 1 of the operational amplifier U301 is respectively connected with one end of a resistor R302 and one end of a capacitor C301, the other end of the capacitor C301 is respectively connected with the positive end of the photodiode and one end of a resistor R300, the other end of the resistor R300 is grounded, the negative end of the photodiode is connected with a 5V power supply, the other end of the resistor R302 is grounded, a pin 3 of the operational amplifier U301 is respectively connected with one end of a resistor R304 and one end of a resistor R303, the other end of the resistor R303 is grounded, the other end of the resistor R304 is respectively connected with one end of a resistor R310 and a pin 4 of the operational amplifier U301, the other end of the resistor R310 is respectively connected with one end of a capacitor C305 and a processing circuit (5), the other end of the capacitor C305 is grounded, a pin 2 of the operational amplifier U301 is grounded, and a pin 5 of the operational amplifier U301 is connected with a 3V3 power supply.

8. A photosensor for making a determination using both distance and color as defined in claim 1, wherein: the CMOS circuit (7) comprises a CMOS chip, the CMOS chip pin 1 is connected with a 5V power supply, the CMOS chip pins 2-3 are respectively connected with the processing circuit (5), the CMOS chip pin 5 and the CMOS chip pin 8 are respectively grounded, the CMOS chip pin 6 is respectively connected with one end of the capacitor C306 and the 5V power supply, and the other end of the capacitor C306 is grounded.